43416504431421 has 16 divisors (see below), whose sum is σ = 63152518840320. Its totient is φ = 26312516460720.

The previous prime is 43416504431413. The next prime is 43416504431479. The reversal of 43416504431421 is 12413440561434.

It is not a de Polignac number, because 43416504431421 - 2³ = 43416504431413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43416504431221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11203261 + ... + 14572098.

It is an arithmetic number, because the mean of its divisors is an integer number (3947032427520).

Almost surely, 2^{43416504431421} is an apocalyptic number.

It is an amenable number.

43416504431421 is a deficient number, since it is larger than the sum of its proper divisors (19736014408899).

43416504431421 is a wasteful number, since it uses less digits than its factorization.

43416504431421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25826416.

The product of its (nonzero) digits is 552960, while the sum is 42.

Adding to 43416504431421 its reverse (12413440561434), we get a palindrome (55829944992855).

The spelling of 43416504431421 in words is "forty-three trillion, four hundred sixteen billion, five hundred four million, four hundred thirty-one thousand, four hundred twenty-one".